Book-section having wide and narrow leaves.



UNITED STATE-s PATIiivr,v OFFICE.

ANSON O. KITTREDGE, OF SPRINGFIELD, MASSACHUSETTS, AND ERNEST R.KITTREDGE, OF NEW YORK, N. Y., ASSIGNORS TO ACCOUNT, AUDIT & ASSURANCECOMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW JERSEY.

BOOK-SECTION HAVING WIDE AND NARROW LEAVES.

SPECIFICATION forming part of Letters Patent No. 702,012, dated June 10,1902.

original application had August 18.51899', serai N6. 727,717. `InviataMathis appntatitn inea November 12,1901. sans No. 31,970. Nomaden T LLZZwhom it may concern..-A

Be it known that we, ANsoN O. KITTREDGE, residing at 42 Leyfred Place,Springfield, county of Hampden, State of- Massachusetts, and ERNEST R.KITTREDGE, residing at 128 East Twelfth street, in the city, county,andV State of New York, citizens of the UnitedV States, have inventedcertain new and useful Improvements in Book-SectionsHaving Wide Io andNarrow Leaves, fully described and represented in thefollowingspecification and the accompanying drawings, Yforming a part ofthe same.

The present application is a division of application No. 727,717,-filedAugust 18, 1899,

with title Book-sections having wide andA and other books having wideand narrow leaves. Such books when used for'accounts 3o and records ofVarious kinds frequently require to be ruled in columns with headingsprinted upon the various columns orv pages.

In most books having wide and narrow leaves a certain number of narrowleaves is bound. intermediate to two of the wide leaves, and

the narrow leaves are used in connection with a record or inscriptionupon the projecting margins of the wide leaves. It is found in practicethat the demands of various busi? so.` nesses requirewide variations inthe number of narrow leaves for usein connection with each of thewideleaves, and as such requirements cannot be anticipated so as to keep thebooks instock we have devised meansv for preparing unit sections with agroup of the narrow leaves and a single wide leaf, so that such sectionsmay be quickly bound into books of various dimensions.-

' to form a book-section.

In practicing the invention we form the narrow leaves in pairs, whichvmay beinserted 5o within yone another, and we form the wide leaf inyconnection with a narrow leaf from a single sheet of suitable width, thepairs of narrow leaves being inserted within the fold of such sheet andthe whole secured together Any number of the pairs of narrow leaves Vcanbe inserted within the fold of the sheet which, ,constitutes the wideand narrow leaf, and books Ain great variety can thus be made at shortVnotice from 6o the same materials previously prepared. By this methodnarrow leaves can be combined with wider leaves of any desired width,and wide leaves of a given width can be combined with narrow leaves ofany desired width. 6:

` The edge of the wideleaf can be reinforced by any of the ordinarymeans to correspond with the thickness of the annexed group of narrowleaves inthe same section and the book be thus made of uniform thicknessin 7o the edge and in the body. By this method of forming book-sectionsthe sheets of paper can be ruled and printed before folding and canthenbe combined at short notice to pro'- duce the books desired.

The invention will be understood by reference to the annexed drawings,in which-jA Figure I is an end view of an open book with the leavesseparated` at the left side to show the disposition of the wide andnarrow 8o leaves. Fig. v2 represents in perspective a pair of the narrowleaves for such book formed from a single sheet. Fig. 3 represents awide and narrow leaf formed from a single sheet. Fig. 4 is an end viewIof one of the wide and 85 narrow leaves with a group of'three pairs ofthe narrow leaves inserted within the fold of the same. Fig. 5 is an endviewofsix sec tions constructed as shownin Fig. 4.

a designates the narrowleaves, b the wide 9c leaves, and c a iiap foldedupon the edge of the'wide leafto forma pocketl for the inser-A tion of athickener. Two narrow leaves are shown in Fig. 2, formed by once foldinga sheet of paper of suitable width.v A wide leaf ZJ and narrow leaf ctare shown in Fig.

3, formed by folding a wider sheet of paper, the paper having alsosufcient width to turn the flap c over upon the edge of the wide leaf ifan integral iiap is desired.

It is immaterial to the present invention how the `edges of the wideleaves be thickened. The visible surfaces of the Wide and narrow leavesare shown ruled, and such ruling is readily eected, and columns ruledupon the sheets and headings printed in the columns, if desired, beforethe sheets are folded.

Fig. 4 shows in the outer leaves a b a pair of wide and narrowleaves,like the pair shown in Fig. 3, excepting that the thickener isshown upon the right-hand leaf instead of the left, and three pairs ofthe narrow leaves a are shown inserted in the fold of the outer leaves.Pairs of the narrow leaves to any required number may be thus inserted,and the folds of all the leaves of such group are readily stitched orsecured together to form a unit or section, and any of suchunit-sections may be bound with other similar sections to form a bookwhich necessarily has, as shown in Figs. l and 5, au odd number of thenarrow leaves between the adjacent wide leaves.

An independent line h is shown at the left side of the group of sectionsin Fig. 5 to indicate a fly-leaf or printed leaf to complete the book,if necessary.

From the above description it will be 0bvious that sections or units ofdifferent character may with the same facility be just as readily madeand combined in the same book as sections of uniform character.

Vhere books require uniform printing or ruling, but vary in the numberof leaves in the diiferent units, the leaves may be made by printing andruling sheets of suitable size and then folding such sheets to formintegral pairs of the narrow leaves and of the conjoint wide and narrowleaves and carrying the same in stock until a given book is ordered andthe required capacity of the book is known.

It will be understood from the above description that each sectionnecessarily con- Jrains an even number of leaves and that one of theleaves being a wide leaf the number of narrow leaves in each section isnecessarily an odd number. The construction is thus distinguished fromall of those in which each signature or section has narrow leaves formedfrom a single sheet folded repeatedly, as the repeated folding of such asheet would necessarily produce an even number of the narrow leaves.

This invention furnishes great facility in making account-books fromstock previously prepared, and thus enables orders to be filled withmuch greater despatch than where the ruling, printing, and folding ofsheets must be done before a book can be made, as the sheets can beruled and printed in advance for many such classes of books and theproper number of narrow leaves readily combined with each of the wideleaves by the arrangement above described.

Having thus set forth the nature of the invention, what is claimedherein is A book having wide and narrow leaves and formed ofunit-sections with an odd number of narrow leaves in each section, andeach section comprising a wide and` narrow leaf in one piece with agroup of narrow leaves in pairs inserted in the fold of such wide andnarrow leaves, and the projecting margin of the wide leaf beingreinforced to agree in thickness with the other leaves of the section,substantially as herein set forth.

In testimony whereof we have hereunto set our hands in the presence oftwo subscribing witnesses.

ANSON O. KITTREDGE. ERNEST R. KITTREDGE. Witnesses:

C. MAcINNEs, Trios. J. PATTERSON.

